Dyfyniad APA

Kerkhof, A., & Akhnikh, S. (2010). Stop worrying: Get your life back on track with CBT. McGraw-Hill : Open University Press.

Dyfyniad Arddull Chicago

Kerkhof, Ad, and Saida Akhnikh. Stop Worrying: Get Your Life Back on Track with CBT. Berkshire, England: McGraw-Hill : Open University Press, 2010.

Dyfyniad MLA

Kerkhof, Ad, and Saida Akhnikh. Stop Worrying: Get Your Life Back on Track with CBT. McGraw-Hill : Open University Press, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.